Pedal extension



1,521,976 M. M. SWAIN l PEDAL EXTENS ION Jan. 6, 1925.

Filed Feb.' 1, 1924 l 40 views,

Patented Jan. 6, 1925.

UNiTED STATES PATENr ori-ica MACK M. SWAIN, F LOS ANGELES, CALIFORNIA, ASSIGNOR OF FORTY PER CENT TO CHARLES A. PLACE, OF LOS ANGELES, CAIJI'EOlit-N'IIVA.`

lPEDAL EXTENSION.

Application filed yFebruary 1, 1924. `Serial No. 689,955.v

To all 'whom t may concern: y

Be it known that I, MACK M. Sv/AIN, a citizen of the United States, residing atI Los Angeles, in the count-y of Los Angeles and State of California, have invented certain newV and useful Improvements iii a Pedal Extension, of which the following is a specification. Y

Y This invention relates to improvements in i0 pedals.

The primary object of this inventionis the provision of a novel, simple, and easily attachable type of pedal extension which is adapted to be used upon ordinary operating l5 pedals so that short people, persons with a short leg, or persons of immature growth may operate the pedals in a comfortable manner. v

A further yobject of this invention .is the provision of a pedal extension which' is primarily adapted for use in connection with the pedals ofautomotive vehicles, being of such nature that the same may be easily applied thereto'for pedal operationV by persons who cannot otherwise operate the pedal. Y n j v A further object of this invention is the provision of a novel adjustable type of.

pedal extension which may be attached to 39 pedals of various sizes and shapes without altering the same, or providing various sizes of the same.

Other objects and advantages of thisk invention will be apparentV during the course of the following detailed description. I

In the accompanying drawing, forming a part of this specification, and wherein similar reference characters designate corresponding parts throughout the several Figure 1 is a side elevation of a'pedal7 showing the location of the same with respect to the conventional floor-or toe-board 'of an automotive vehicle, and rfurthermore showingkthe improved pedal extension at- `--lached thereto.

Figure 2 is a cross sectional View taken through important clamping details of the improved pedal extension, showing thecooperating details of this invention.

Figure 3 is a cross sectional view taken substantially on the line 3-3 of Figure 2.

Figure 4 is a bottom plan view of the improved pedal extension.

In the accompanying drawing, whereinv for the purpose of illustration is shown but the preferred embodiment of this invention,

the letter A may generally designate any type of pedal upon which the improved eX- tension B is to be used and rigidly clamped thereto so that Classes of persons who otherwise would not be able to operate the pedal A may with the aid of the extension B conveniently and comfortably operate the pedal A to secure the desired effect.

The pedal. A may be of any approved type, and preferably includes the supportving post or shank portion 10 which extends through a suitable slot 1l in the floor or toe- .b'oard construction 12 of an automotivevehicle, and which upon its free end supports the ordinary foot plate 13. This foot plate varies in sizes with different pedals, and

hence it is an object of the invention -to adapt the improved extension B to any pedal plate 13. v

The improved extension B preferably includes a stemportion 15; pedal plate yor foot plate 16; and means 17 adjustable on the stem 15 to clamp the improved pedal extension to the pedal A. y

The extension pedal plate is preferably flat, although the same may be of any approved shape, and it has rigidly attached thereto the supporting stem 15, whichA is screw threaded from a point adjacent the plate 16 to theextreme opposite end..

The means 17 by which the pedal post 15 is adjustablylclamped in a securedposition upon thefconventional pedal 13, consists of a pair of clamping jaws or members 1S and 19 which are 4preferably formed of stamped sheet metal. The member v19 is preferably J-shaped information, including the plate body 20 which Ahas the lateral iiiturned` flanges 21 at the sides thereofto provide side grooves 2.2 in facing relation whichare adapted toslidably receive vtherein the side Yportions of the plate body 23 of the J-shaped clamping member 18. Themembers 18 and f 19 at their remote ends are provided with the hook portions 25 and 26 respectively which provide pockets 27 and 28 respectively, adapted to receive therein edge portions of the foot rest or plate 13 of the pedal A. .The `ff*" redge of the lowermost flange 28-'of the hook portion 25, and which lies beneath the pedal plate 13 is preferably providedwith a V- shaped recess 30 therein adapted to receive the pedal post 10 as the means of stably loably provided withl a plurality of screw threaded openings 38 therethrough adapted to adjustably receive the post or stem therein,

Inoperation, the body portion 23 ofthe .l-

shaped clamped portion 18 is slipped. withinv thefgrooves 22 of the J-shapedA ymember 19 and the portions 18 and 19 a re then laterally slipped over the pedal foot rest plate 13 and so that the flange portions of-thehoolts 25 and 26y lie beneath the 'pedal plate 13. The flange 28 is uppermost upon the pedal A. and receives'in the Arecess BOithe shank portion 1() of said pedal substantially in the4 relation shown in Figure 1 of the drawing. The members 18A and 19 are thenl slid into their most collapsed relation upon the foot,`

pedal plate 13, and until one of the openings aligns with ai screwthreaded open-k ing 38. The screw4 threaded stem 15 1s then` inserted in these aligning openings Strand S8, and isadjusted until the 'endy surface fi() of this stem engages'the top surface of` the` pedal plate A13, and is continued in its atljustment untilthe flange yportions ot the hooks 25 and 28 which are below the plate 13 snugly engage the lower surface of the platev 13, The V'clamping jaws I18and 1.()k are Ythen secured in a clamped relation upon the pedal: plate 13, and va wing nut i-5 is preferably provided upon the screw threaded stem 15 which may be adjusted dovf'nwardly thereover into a clamping engagement with` the upper surface of the platebody portion 20. Thisv locks the screw threaded stem 15 into the desired rclamped relation with respect to the pedal and'- pedal extension.

From the foregoing description of this invention it is apparentthat a pedal extension has been provided which is of aV relatively simple character, and which may be economically produced. 1t may be clamped in a locked and stable relation `upon the lpedal plate of a conventional order, and the improved extension is providedV vwith an adjustable clamping means whereby it may adapt itself to a particularsize Vof pedal plate. i

Various changes in the shape, size, and

arrangement of parts'may be made 5to ther form of the invention herein shown and described, without departing from thespirit of this invention or the scope of th'e'claims. I claim; 1. A, pedal extension comprising a pedal plate, a screw threaded stem fiXed on the plate, a pedal clamping, member provided with a screw threaded opening therethrough for receiving said screw threaded stem, and a nut adjustable on the screw threaded stem between said pedal clamping member and said pedal plate.

2. In combination with a conventional pedal including a foot rest plate, of a pedal extension including a pedal plate, a screw threaded stem secured to said pedal plate, and a4 clamping plate having flanges overturned thereon adapted to receive therein the foot: rest plate and having a screw threaded opening therein for receiving in adjustable manner the screw threaded stem of said pedal extension therethrough, said screw threaded stem adapted to abut said footrest plate to clampy the iianges of said pedal extension plate beneath the pedal foot rest.

3, In a device of the class described the combination of a pair of substantially J- shaped clamping portions one of. which has smooth openings thereinV and the other of which is provided with screw threaded openings-therein, means slidably connecting the plates together whereby the openings thereof may be placed in alignment so that the ends of the J-shapedvportions may be moved toward orv away from each other, a screw threaded postadapted for extension through the aligning openings *and4 for a threaded adjustment in a. screw threaded opening, and a pedalplatecarried by saidv post opposite :to vsaid J-shaped clamping portions.

41. In a` device of the class described the combination of. a pair of substantially lshaped clampingrportions one of whichhas smooth openings the-rein andthe other of which is provided withiscrew threaded openings therein, means slidably connecting the plates together wherebythe openings thereoft may b e placed in alignment so that the ends of the J-shaped portions may be moved toward or away from each other, a screw threadedpost adapted for extension through the aligningv 'openings and, for a threaded adjustment in a screw threaded opening, a pedal plate carried' by said lpost opposite to said J-shaped clamping portions, and a nut adjustable on said screw threaded stem between said J-shaped clamped portions and said pedal plate.

5. Ina pedal extension. of the class described a pair of substantially J-shaped clampingY portions each having an opening therein, said 'clamping portions adapted to be relatively moved to place the openings in aligning relation, a post having a footnrest plate on van end thereof-and atits opposite endjadaptedv to extendtthrough the aligning openings of said clamping portion. and means for securing the post in such relation in said openings to hold the clamping` portions in a iiXed assembled relation.

6. In a device of the class described a pair of clamping portions each including a main body of elongated formation at one vend thereof having a J-shaped retaining flange, one of said portions at the lateral edges thereof providing underturned retaining flanges adapted to slidably receive the body portion of the other clamping portion, the body portion of the clamping portion having the lateral flanges being provided With a series of openings therealong, and the body portion of the other clamping portion having` a series of screw threaded openings therein adapted to be selectively placed in alignment with the openings of the body of ythe clamping portion beneath which it is placed, a screw threaded supporting post adapted to extend through the aligning openings of said clamping portion in threaded engagement With the threaded opening of one of said clamping portions, a foot rest plate on the upper end of said post, and a nut in threaded engagement with said post between the foot rest plate and the uppermost clamping portion adapted to engage the latter for locking the clamping pore tions in a definite fixed relation.

MACK M. SVVAIN. 

